package servlet;

import pojo.Dept;
import service.DeptService;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        DeptService deptService = new DeptServiceImpl();
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");
        if(action.equals("list")){
            String dname = req.getParameter("dname");
            Dept condition = new Dept(dname);
            List<Dept> depts = deptService.findAll(condition);
            req.setAttribute("depts",depts);
            req.setAttribute("dept",condition);
            req.getRequestDispatcher("/index.jsp").forward(req,resp);



        }else if(action.equals("add")){
            String dname = req.getParameter("dname");
            Dept dept = new Dept(dname);
            int result = deptService.add(dept);

            if(result > 0)
            {
              resp.sendRedirect("dept?action=list");
            }else {

            }


        }else if(action.equals("delete")){
            int id = Integer.parseInt(req.getParameter("id"));
            int result = deptService.delete(id);
            if(result > 0)
            {
                resp.sendRedirect("dept?action=list");
            }else {

            }

        }else if(action.equals("update")){
            int id = Integer.parseInt(req.getParameter("id"));
            String dname = req.getParameter("dname");
            Dept dept = new Dept(id,dname);
            int result = deptService.update(dept);
            if(result > 0)
            {
                resp.sendRedirect("dept?action=list");
            }else {

            }

        }else if(action.equals("toupdate")){

            int id = Integer.parseInt(req.getParameter("id"));
            Dept dept = deptService.findById(id);
            req.setAttribute("dept",dept);
            req.getRequestDispatcher("/update.jsp").forward(req,resp);

        }


    }
}
